What is meant by "muscle specificity" in training?

Muscle specificity in training refers to the principle that exercises will produce the greatest strength and hypertrophy in the muscles directly engaged during the workout. The key idea is that when training is directed towards specific muscle groups, those muscles adapt and strengthen in accordance with the demands placed upon them. This focus allows for targeted development, meaning that if a person desires to improve a particular muscle group or achieve certain physical outcomes, the training regimen must include exercises that specifically engage those muscles.

For example, if an individual aims to strengthen their quadriceps, exercises like squats and lunges would be included in their program, as these movements directly target the quadriceps. By employing muscle specificity, trainers can effectively create programs tailored to their clients’ goals, enhancing efficiency and results.

The other choices do not accurately convey the concept of muscle specificity. Using machines alone does not define the principle, as specificity applies to any form of resistance training that focuses on particular muscles. Similarly, the use of a repetitive workout routine or bodyweight exercises does not solely encompass muscle specificity; it’s more about which muscles are being engaged in the training for achieving specific outcomes.